Ryu Hyo-young (born April 22, 1993), better known by the mononym Hyoyoung or Jung Woo-yeon, is a South Korean actress, model, and rapper.

Ryu was scouted after she and her sister made an appearance on SBS' variety show Star King by Core Contents Media.

[citation needed] In that same year, Ryu was cast in KBS' teen drama Jungle Fish 2.

[citation needed] In 2011, Ryu joined Coed School's female unit, F-ve Dolls.

The same year, she starred in MBC's romantic comedy drama The Greatest Love playing a popular singer.

[7] In August 2015, following F-ve Dolls' disbandment, it was reported that Ryu had requested to terminate her contract with MBK Entertainment.